"Peanut butter is chock-full of heart-healthy monounsaturated fat. A recent study found that insulin-resistant adults who ate a diet high in monos had less belly fat than people who ate more carbohydrates or saturated fat. PS: If you're buying reduced-fat peanut butter because you think it's better for your waistline, save your money. The calories are the same (or even a little higher) thanks to the extra ingredients that are added to make up for the missing fat (including more sugar)."Read more: http://www.prevention.com/food/smart-shopping/healthy-eating-why-peanut-butter-good-you#ixzz22KTqR3Gd